// Copyright 2013 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// MemorySanitizer support.

#ifndef V8_MSAN_H_
#define V8_MSAN_H_

#include "src/base/macros.h"
#include "src/globals.h"

#ifdef V8_USE_MEMORY_SANITIZER

#include <sanitizer/msan_interface.h>

// Marks a memory range as uninitialized, as if it was allocated here.
#define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \
    __msan_allocated_memory(reinterpret_cast<const void*>(p), (s))
// Marks a memory range as initialized.
#define MSAN_MEMORY_IS_INITIALIZED(p, s) \
    __msan_unpoison(reinterpret_cast<const void*>(p), (s))

#else // !V8_USE_MEMORY_SANITIZER

#define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s)                                                                                                                      \
    static_assert((std::is_pointer<decltype(p)>::value || std::is_same<v8::internal::Address, decltype(p)>::value) && std::is_convertible<decltype(s), size_t>::value, \
        "static type violation")
#define MSAN_MEMORY_IS_INITIALIZED(p, s) \
    MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s)

#endif // V8_USE_MEMORY_SANITIZER

#endif // V8_MSAN_H_
